Keyless lock.



PATENTED JAN. 1,1907.

O..M. PARRAND.

KBYLBSS L0GK. APPLICATION FILED 11116.22. 190s.

. 3 SHEETS-SHEET 1.

FIG. 2.

INVENTOR:

By zflvmeys, A/u Z WITNESSES:

m m w PATENTED JAN. 1, 1907.

3 BHEETSSHEET 2.

FIG. 5.

INVENTOR A! rneyx,

' 0. M. FARRAND.

KEYLESS LOCK.

APPLIOATION FILED AUG;22. 1905.

FIG. 4.

' PATENTED JAN. 1, 1907..

No. 840,054. I,

' 0. M. FARRAND.

* KEYLESS LOGK.

APPLIOATION FILED MIG. 22, 1905.

3 SHEETS-SHEET 3.

FIG, 9.

FIG. 8.

FIG. 7.

INVENTOR: v

. tion.

and 9 are face elevations, and Fig. 10 an OLIVER M. FARRAND, OF NEWYORK, N. Y.

KEYLESS LOCK.

Specification of Letters Patent. Patented Jan. 1, 1907 Application filedAugust 22, 1905. $erial N0. 275.201-

To all whom it may concern:

Be it known that I, OLIVER M. FARRAND, a citizen of the United States,residing in the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in KeylessLocks, of which the following is a specificaprovided for rendering themechanism inoperative as soon as it has drawn the bolt back. The deviceis shown in connection with an inside knob for house-doors and the like,but for safes, satchels, or other cases, where an inside knob isunnecessary, this knob and the parts necessary to its use will beomitted.

The bolt A of any suitable type is thrown outward by a spring B and isdrawn back by an arm O engaging a shoulder D on the bolt. The arm Ccarries a pin E, offset at one side thereof and projecting forward intothe path of an operating device hereinafter described, which when thecombination has been properly followed strikes the pin E and forces itin the direction of the arrow, thereby drawing the bolt A inward andunlocking the lock.

The operating device for moving the arm O is shown as a slide F, carriedupon the rear face of an arm G and having a projecting portion(indicated in Figs. 1 and 5) is in line to engage the pin E, but whichmay be raisedto such a position as to clear the pin E. A spring J,taking into suitable notches on the edge of the slide F, holds itimpositively in either its upper or its lower position.

The arm G extends from the shaft K of the outer knob L, which is free toturn relatively to the shaft M of the inner knob and which is also freeto shift axially a slight distance, the axial movement being limited bya leafspring N, preferably fixed at one end upon the shaft M of theinside knob and which has .a beveled tooth at its free end taking intoone or the other of the two transverse grooves O and P in the shaft K ofthe outer knob. The arm O is thus'pivotally supported and adapted toreceive the successive rotary and axial movements necessary foroperating the bolt.

The slide F has a pointed, preferably conical, end Q, which passes overthe portion R, Fig. 2, of a plate, which is indicated as a whole by theletter S. The portion R is provided with a series of screw-holes inpairs T T, which are separated by a distance equal to the play betweenthe grooves O and P of the shaftthat is to say, the axial play of theknob and the arm G and slide F. Tapered,

referably conical, stops U are screwed into one of the holes T or T ofeach pair in such an arrangement that the slide F in order to pass overthe plate must move during a certain number of intervals over the outer.line of holes T, and must then beshifted axially and pass over a certainnumber of holes T of the My invention aims to provide an improvedkeyless or combination lock, adapted for use wherever locks arenecessary, from a satchel to a safe or vault, and adapted to be operatedby the sense of touch, so that it can be oper ated by a deaf or a blindperson. There is no dependence ongravity. Therefore thelock operatesequally well in any situation, and the construction is extremely simple,involving few arts, so that it can be made very small or arge, accordingto circumstances.

Other advantages are referred to in detail hereinafter.

The accompanying drawings illustrate an embodiment of the invention.

Figure 1 is an elevation of the mechanism partly in section, the frontplate of the lock being removed. Fig. 2 is a development of the face ofthe controlling-plate. Fig, 3 is a section of Fig. 2 on the line 3 3.Fig 4 is a section through the shaft of the lock, indicating theprincipal parts of the mechanism in elevation. Fig. 5 is an elevation ofthe opposite face of the arm shown in Fig. 1. Flg. 6 is an elevation ofa different type of indicating device for indicating the intervalsthrough which the knob has been turned. Fig. 7, 8,

edge elevation of a different construction.

Referring to the embodiment of the inven tion illustrated, the lock isoperated by successive rotary movements of the knob, all in the samedirection, with axial movements between the successive rotary movements,the intervals of the movement being indi cated by the sense of touchupon the knobthat is, by a series of slight shocks as a member of themechanism passes over a series of teeth. The knob is movable axially aswell as rotatable, and is shifted axially at the end of certaindetermined intervals, which are indicated in the manner above stated. Ifthe knob be not shifted axially at proper intervals, the unlocking meansare rendered inoperative. Preferably means are also provided for turningthe mechanism to its operative position upon turning the knob to itsstarting-point, and preferably also means are H, which in its loweredposition any desired combination.

"tobe'inaccessible either from outside'or-inside any other parts of thecasing or'of the mechanism, so that it pin d, having abeveled end whichengages a voperative as soon as the work of beveled'end in position toengage'a beveled withdraw the bolt.

,a pointed end which passes frictionally over the teeth W, may beprovided with a rotating wheel h, Fig. 6, having teeth 7', spacedproperly to engage in succession grooves 7c, corresponding to thegrooves between the I teeth W. As the slide X is swung over the plate Vthe wheel it will .roll along, the teeth 7' dropping into successivegrooves with suficient force to transmit a shock to the hand of theoperator, but with less noise than occurs in the case of the frictionalengagement 1 between the point Z and the teeth W. The noise, in fact, isso'slight'that a person standing behind the operator will not be able toearn the combination by counting the successive clicks.

The lock may also be constructed render the operating soon as thepressure upon the knob by which it holds the bolt drawn is released.ForeX- ample, in the lock illustrated the slide F may be arranged to bethrown to its upper inoperative position as soon as the knob isreleased, and the bolt A is thrown back to its locked position, thelifting of the slide F being accomplished by the engagement of the endof the detent X with the'lasttooth W of inner line, and so back andforth until it escapes at the end with the portion H in position tostrike the pin E and draw the bolt. If the combination is not correctlyworked, the operating device or slide F is rendered inoperative, thetapered end Q of the slide I striking one of the tapered stops U andlifting the slide out of its operative position where it I will be heldby the impositive spring J, and i the lock will fail to open. Theindicating of the intervals is accomplished by'means of another portionof the plate S, or it may be a l separate plate, which is provided withfixed :teeth W at intervals corresponding with the distance betweensuccessive holes T or T, in combination with a .detent preferably in theform of'a' slide X, which is carried upon the front of the arm Gsandwhich is pressed al- "ways downward by a spring Y, so that its pointedend Z transmits a slight shock to the nob as itrides over each oftheteeth 7.

Thestops U'being removablemay be set to In the example shown theoperating-slide F moves over the Y path indicated by the broken line ab, and which would be represented in numbers as so as to deviceinoperative as.

3, 5, 1, 3, 1. A very convenient arrangethe plate S. Figs. 7 to 10illustrate 'a suitment is provided for changing the combinaableconstruction. The lower end of the tion. The plate S, or at least theportion R slide X consists of a member X, pivotally thereof, is mountedin the look by means of connected at lwith the upper portion of theslide. This lower portion X may carry a sliding point Z, as illustrated,or a rolling point 7! equally well. The main portion of the slide X isprovided with the pin m, engaging the rear edge of the portion X, sothat the latter cannot swing backward as the arm swings downward to openthe lock, and so that the slide X will be lifted and lowered overthe-teeth asbefore described. hen the bolt has been drawn fully backwardand the knob is released, the entire arm G is drawn backward thereby,and the point of the portion X will strike the last tooth W and yield,in the manner indicated-in 9, against the resistance of alight spring-n.By this yielding-action a pin 0 upontherear face of the portion Xswingsup under a forward projection pupon the operating-slide-F, so'as to liftthe atter from its operative to its inoperative position, the spring Jholding it up so that the bolt cannot be again drawn until the knob isswung back to its starting position and then forward, according to theproper combination.

In order to secure the greatest number of possible combinations, we mustsuppose that the stops U will sometimes be not near the lower end of thelate S. If there are no sto s U near the ower end, then when the 106i isopened. and the knob released the shortdistance which it moves backunder the influence of the spring B will not be enough for theoperating-slide F to engage 'a stop U and'throw the slide out ofoperative position, and for this reason the construction above anextension 0, which is fastened from the outside into the-edge of thelock-casing, so as whenthe door is shut, the plate S proper being passedthrough a suitable opening in the casing of the lock, andbeingunconnected to may be freely withdrawn from the outside andreplacedafter the combination has been altered.

In turning the outer knob back to its start ingposition it is notessential to reverse the combination. The slide F may be allowed tostrike the stops Uand'to be thrown to its inoperative position. Meansare provided -for restoring it to its operative position upon the returnofthe knob to its starting position. These means 'mayconsist, forexample, of a eveled edge e of the slide to throw it to its outward oroperative position. It may also bedesirable torender the operating meansin drawing the 'bolt has been accomplished, and means may be providedfor this purpose. Such means, for eXample, may consist of a pin f,having a edgegupon the slide when the latter is moved slightly beyondthe position necessary to The-relative positions of the pins d and f andthe beveled edges 6 and g 'ofthe slide are indicateddiagrammatically inFi 5;

' The slide X, instead of being-provided with thrown out ofposition bythe action of the such condition as to permit its being immetion oftheparts may be made by those skilled in the art without departure fromthe invention, i

a ,movements of the knob all in the same direction, with axial movementsbetween the suc 1 indicating the intervals of the movements bydescribed, whereby the operating-slide is tion, andimeans for renderingthe operating means inoperative at the end of the unlocking movement.

; .6. A keyless lock including in combination an arm adapted to receivesuccessive rotary diately reopened without working the combimovements,all in the same direction, with nation, the knob may be released gently,so -axial movements between the successive rothat the ,armGwill bethrown onlyfar enough tary movements, to unlock the lock, operatto bringthe end of the pivoted portion X ing means for turning said arm in saiddirecagainst the last tooth W, as shown in Fig. 7, tion,. means forrendering the operating meansinoperative if it is not turned in a debutnot to' cause, it to ride up upon said tooth.

termmed manner, and means for rendering the operative means operativeagain upon Therefore byreleasing the knobgently the lock is in conditionto be reopened immethe return of .said arm to its starting posispring.

B in throwing the bolt, is of value.

1particular If it be desired to leave .t e lock in diately, or byreleasing it quickly the lock can only be reopened according to thecombination.

Though I have described with great particularity of. detail certainspecific embodiments of myinvention, yet it is not to be understoodtherefrom that theinvention is .said teeth, and an operating deviceconlimited to the specific embodiments dis- .trolled by said movablestops. closed- Various modifications thereof in 8. A combination-lockincluding in comdetailand in the arrangement and combinabination acasing having an opening in one edge and means for determining thecombination and which is removable through said opening for the purposeof changing the combination.

9. A combination-lock including a plate provided with means fordetermining the combination, said plate being entirely disconnected fromany mechanism within the lock, a casing having an opening in one edgethrough which said plate may be passed, and

on. v

7. A keyless lock including in combination fixed teeth and movablestops, a device constructed to engage said fixed teeth to indicatesuccessive intervals by its passage over 7 What I, claim, is

1. A keyless.- lock having a knob, means for operating the look bysuccessive rotary cessive rotary movements, and means for the sense oftouch alone.

2. A keyless lock having a knob, means for operating th'elo'ck bysuccessive rotary movements of the knob all in the same direction, withaxial movements between the successive rotary movements, a toothedplate, and a member operated by the knob traveling over 'said plate andindicating the inter valsby its passage over said teeth.

3. A keyless lock having a knob, means for operating the lock bysuccessive rotary movements of the knob all in the same direc tion, withaxial movements between the successive rotary movements, a toothedplate, an arm operated by said knob, and a yielding detent carried bysaid arm and moving over said plate and indicating successive intervalsby its passage over the successive teeth.

4. A keyless lock including in combination a pivoted and axially-movablearm, means controlled by giving said arm successive rotary movements allin the same direction and shifting it axially between the successiverotary movements for operating the lock, and means indicating to thesense of touch the successive intervals passed over by said arm. l

5. A keyless lock including in combination an arm adapted to receivesuccessive rotary movements, all in the same direction, with axialmovements between the successive rotary movements, to unlock the lock,operating means for turning said arm in said directhe edge of thecasing.

10. A keyless lock including in combination, a shaft K adapted to besuccessively .moved in the same direction, an arm Gr car ried by saidshaft, detents X and F on said arm, a toothed member over which thedetent Xtravels to indicate the intervals, and a member It provided withstops U in the path of said detent F and which can only be axialdirection at certain rotation.

11. A keyless lock including in combination a shaft K adapted to besuccessively moved in the same direction, an arm G carried by saidshaft, detents X and F on said arm, a toothed member over which thedetent X travels to indicate the intervals, a member R provided withstops U in the path of said detent F and which can only be avoided bythe shifting of said shaft K in an axial direction at certain intervalsduring its rotation, and a spring N, said shaft K having grooves O and Pinto which said spring N 'ects to hold the shaft. impositively inintervals during its P either one of two positions to which it may beshifted axially.

12. A keyless lock including in combination a shaft K adapted to besuccessively moved in the same direction an arm G carried by said shaft,detents X and F on said means for fastening said plate in position inavoided by the shifting of said shaft K in an ed by the shifting of saidshaft 'K-in'an axial member R provided arm, a toothed member over -whichthe detent X travels to indicate the intervals, a member R provided withstops U in the path of said detent F and which can only be avoided bythe shifting of said shaft K in an axial direction at certain intervalsduring its ro- I tation, and-a pin (i, said detent F having a bevelededge e in position to be engaged by said pin (2 upon the return of thearm to its original position, whereby the detent is thrown to itsoperative position.

13. A keyless lock including in combination a shaft K adapted to besuccessively moved in the same direction, an arm G carried by saidshaft, detents X and F on said arm, a toothed memberover 'which thedetent X travels to indicate the intervals, a member R provided withstops U in the path of said detent F and whichcan only be'avoided by theshifting of saidshaft K in an axial direction at certain intervalsduring its ro- I tation, and a-pin f, said'detent F having a bevelededgeg in position to be engaged by said pin when the arm ismoved'slightly beyond the position necessary to withdraw the bolt,whereby the detent is thrown to its inoperative position.

14. A keyless lock including in combination a shaft K adapted to besuccessively moved in the same'direction, an arm G carried by saidshaft, detents X and F on said arm, a toothed memberover which thedetent X travels to indicate the intervals, a with stops U in the pathof said detent F and which'canonly be avoiddirection at certainintervals during its roi tation, an arm 0 normally in engagement withthe bolt and havinga pin E adapted to be engaged by the detent F whenthe latter is in itsoperative position so as to draw the olt.

15. A keyless lock including in combination a shaft, operating means forturning said shaft, means forunlocking the look upon the turning of theshaft and means for rendering the operatingmeans inoperativeuponreleasing the shaft at =the:end of the unlocking movement.

16. A keyless lock including incombination-a shaft, operating means forturning said shaft, means for unlocking the look upon the turning of theshaft and means for rendering the operating means-inoperative uponquickly releasing the shaft at theend of an unlocking movement, but notupon agradual release of said shaft.

17. A keyless'lock including in combination an arm carried upon apivotal shaft, a detent carried by'said arm, a pivoted member carried bysaid detent and adapted tobe swung on its pivot bya backward movement ofsaid arm, teeth over which said detent rides and by which it is swungbackward andmeans for rendering the mechanism for unlocking the lockinoperative upon the swinging of said pivoted member.

18. A keyless lock including in "combination an arm Gcarried upon apivotal shaft, a detent X carried by said arm, a'yieldinglyslidablepivoted member X constituting the end of said detent and adapted toswing in a backward direction only, a series of teeth over which theendof said detent travels as the arm is moved, thereby-effecting a slidingmovement of said detent when the arm is turnedin the forward direction,and a swinging movement'of said pivoted member when the arm is swung inthe backward direction,

and means-operated by the swinging movement of said pivoted memberfor'rendering the mechanism for unlocking the lock inoperative.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

OLIVER M. FARRAND. Witnesses:

\DOMINGO A. UsINA, THEODORE T. SNELL.

